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7165583255
glibc/sysdeps/s390
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Stefan Liebler 7165583255 S390: Do not call memcpy, memcmp, memset within libc.so via ifunc-plt. 
On s390, the memcpy, memcmp, memset functions are IFUNC symbols,
which are created with s390_libc_ifunc-macro.
This macro creates a __GI_ symbol which is set to the
ifunced symbol. Thus calls within libc.so to e.g. memcpy
result in a call to *ABS*+0x954c0@plt stub and afterwards
to the resolved memcpy-ifunc-variant.

This patch sets the __GI_ symbol to the default-ifunc-variant
to avoid the plt call. The __GI_ symbols are now created at the
default variant of ifunced function.

ChangeLog:

	* sysdeps/s390/multiarch/ifunc-resolve.h (s390_libc_ifunc):
	Remove __GI_ symbol.
	* sysdeps/s390/s390-32/multiarch/memcmp-s390.S: Add __GI_memcmp symbol.
	* sysdeps/s390/s390-64/multiarch/memcmp-s390x.S: Likewise.
	* sysdeps/s390/s390-32/multiarch/memcpy-s390.S: Add __GI_memcpy symbol.
	* sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: Likewise.
	* sysdeps/s390/s390-32/multiarch/memset-s390.S: Add __GI_memset symbol.
	* sysdeps/s390/s390-64/multiarch/memset-s390x.S: Likewise.
2016-05-24 10:39:13 +02:00
..
bits S390: Extend structs La_s390_regs / La_s390_retval with vector-registers. 2016-03-31 17:37:16 +02:00
fpu S390: Regenerate ULPs 2016-01-19 10:02:44 +01:00
multiarch S390: Do not call memcpy, memcmp, memset within libc.so via ifunc-plt. 2016-05-24 10:39:13 +02:00
nptl Add __private_ss to s390 struct tcbhead. 2016-01-14 16:48:55 +01:00
s390-32 S390: Do not call memcpy, memcmp, memset within libc.so via ifunc-plt. 2016-05-24 10:39:13 +02:00
s390-64 S390: Do not call memcpy, memcmp, memset within libc.so via ifunc-plt. 2016-05-24 10:39:13 +02:00
abort-instr.h
asm-syntax.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
configure
configure.ac
dl-irel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ffs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fix-fp-int-convert-overflow.h S/390: Do not raise inexact exception in lrint/lround. [BZ #19486] 2016-01-18 12:48:06 +01:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Implies
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc-tls.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
linkmap.h
longjmp.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
preconfigure
sotruss-lib.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
string_private.h Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
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